Smoking pipe



April 25, 1939.

D. WfALPHA ET! AL SMOKING PIPE Filed July 28, 1956 2 Sheets-Sheet l I ENTORS D. w. PHA EA. 5 P RD E p ORNEY;

April 25, 1939. p w ALPHA-ET AL I 2,155,780

SMOKINGV PIPE Filed July 2a, 1936 2 Sheets-Sheet 2 INVENTOR D. vv. ALPHA Y E. A. SHE EHD Patented Apr. 25, 1939 UNITED STATES SMOKING PIPE David W. Alpha, Goose Creek, and Emmett A. Shepherd, Houston, Tex.

Application July 28', 1936, Serial No. 92,964

8 Claims.

Our invention relates to smoking pipes and particularly to pipes wherein means are provided for cooling the smoke and trapping the condensation to prevent it from being absorbed by the pipe or from entering the mouth of the smoker.

It is a fact that most tobacco smokers get greater enjoyment from a clean cool pipe smoke than from tobacco smoked in any other form or manner. But heretofore pipes have had this 10 serious objection which has greatly limited their use, namely, that they collect and absorb odors and condensation products from the burned tobacco which soon impart strong and disagreeable odors to the pipe, objectionable alike to both the smoker and those associated with him. Of course, the passages in the pipes can be cleaned by the usual pipe cleaners, but that cleaning is only superficial because it cleans only the surfaces of the passages in the stem and bowl. It can not remove the moisture and condensation products that are absorbed into the wood or other porous material of which the pipe is made.

The principal object of the present invention,

therefore, is to produce a pipe that will give a sweet, clean, cool, dry smoke at all times, that can be easily and thoroughly cleaned of all moisture and condensation products, and that will be prevented from absorbing objectionable odors or becoming strong.

More specifically another object of our invention is to provide a pipe having a condensation chamber or moisture trap preferably made from metal of high heat conductivity and having a relatively large surface exposed to the air so that all volatile products resulting from distillation or burning of the tobacco will be condensed and collected therein, and also the smoke will be cooled and made sweeter.

Another object of the invention is to provide a pipe having a cooling chamber divided into two compartments by a b aille or partition which extends across the passage leading from the pipe bowl to the stem and diverts the smoke into one compartment where it is cooled and cleaned, and thence through properly designed apertures or passages to the compartment on the other side of the bafiie, and thence to the passage leading to the stem or mouth piece.

Another object of the invention is to provide means whereby any saliva that may enter the mouth piece will drain into the cooling chamber. Another object of the invention is to provide a pipe having a cooling chamber of which all parts will be made from metal or other material that is non-absorbent, and that is designed so that it can be easily removed for cleaning without the use of special tools.

Still another object is to provide a removable cooling chamber that can be embodied in pipes 6 of any shape, size or style without materially altering their usual shape and proportions.

The above and other objects will be readily apparent to those skilled in this art and will more fully appear as the specification proceeds. 10

In the accompanying drawings we have illustrated what we now believe to be the best form of our invention, and modifications thereof, which it will be understood are but illustrations of and not limitations on the invention. 15

Fig. 1 is a longitudinal section through the bowl of a pipe having our invention incorporated therein.

Fig. 2 is a section taken substantially on the line 2 2 of Fig. 1.

Fig. 3 is a bottom plan of Fig. 1, showing in dotted lines the cooling chamber partly unscrewed.

Fig. 4 is a top plan of the cooling chamber.

Fig. 5 is a perspective view of the cooling cham- 25 ber and its cooperating top plate.

Fig. 6 is an end view, looking from right to left of Fig. 4.

Fig. '7 is a section taken on the line 'l-'! of Fig. 4. 30

Fig. 8 shows a modified form of bafile and seal provided between the cooling chamber and top plate.

Fig. 9 shows another modified form. wherein the cooling chamber bulges below the bowl of 35 the pipe and a drain opening is shown connecting the two compartments at the bottom.

This application is in part a continuation of our earlier filed application Ser. No. 21,036 filed May 11, 1935, the embodiment of the invention 40 illustrated in Figs. 10 to 13 being disclosed and claimed in the earlier application.

Referring first to Figs. 1 to 7, 1 indicates the bowl of a pipe having a shank 2 and stem 3, a smoke passageway 4 being formed in the shank and communicating with the interior of the bowl. The lower part of the bowl and shank are cut away to provide a seat 5 and shoulder 6 to receive a cooling chamber 1 preferably formed of 50 metal of high heat conductivity, such as aluminum, and with its outer surface merging smoothly into the outer surface or outline of the bowl and shank. A recess or opening 8 extends upwardly from the seat 5 across the passageway ,55

4 so as to divide the passage into front and rear sections, the recess being closed at the top.

The cooling chamber I comprises an upper plate 9 which is secured by screws to the seat 5 with a partition III extending upwardly into the opening 8 and closing it to the direct passage of smoke through the passageway 4. This partition has front and rear ducts II and I2, the upper ends of which are in communication with the two parts of the smoke passageway 4 and at their lower ends communicate with similar ducts I3 and I4 formed in a partition I5 extending upwardly from the lower plate I6 which is hollow so as to provide a cooling chamber. The partition I5 divides the cooling chamber into front and rear compartments IT and I8 which are in communication by one or more apertures I9 formed in the partition I5. The partition I5 is screw-threaded at its upper end to engage similar screw threads provide a single partition and a single pair of ducts. in the partition are so located that when the lower plate or cooling chamber is in its proper position with respect to the pipe, the ducts II and I3 will be in registry and the ducts I2 and I4 will be in registry so that they in effect provide a single partition and a single pair of ducts. Preferably the upper edge of the lower plate I6 is provided with a narrow groove 20 to receive a gasket 2| to provide a tight seal between the upper and lower plates. This gasket is but one means for forming a tight seal between the upper and lower plates and any other suitable means may be utilized.

It will be noticed on reference to Fig. 3 that the shoulder 8 is rounded with its center of curvature at the center of the screw threads on the upper end of the partition I5 so that the lower plate or cooling chamber may be rotated to remove it from the pipe.

In operation, smoke from the bowl passes through the smoke passageway into the ducts I I and I3 and thence into the forward compartment I! where the smoke will be cooled and any moisture or volatile liquids will be condensed and collected in the compartment II. The cooled smoke then passes through the apertures I9 into the rear compartment I8 where it may be further cooled and thence through the ducts I4 and I2 into the smoke passageway 4 leading to the stem 3. Since the cooling chamber preferably is made from aluminum or other metal of high heat conductivity the smoke will be cooled and all moisture and condensable material removed so that only cool, sweet smoke enters the mouth of the smoker. The pipe is very readily cleaned because all that is necessary to clean it thoroughly is to unscrew the lower cooling chamber IIi whereupon all of the passageway: and compartments are easily accessible for cleaning. The ducts II, I2, I3 and I4 and cooling compartments II and I8 being provided in metallic members, they can be easily cleaned and the metal will not permanently absorb odors or condensation products.

In Fig. 8 we have shown a slight modification in which the lower partition I5 extends somewhat higher into the partition I than it does in Fig. 1 and the connection between the two is sealed by a gasket or packing material 22. The gasket 22 has ports or openings 23 and 24 which register with the ducts II, I2, I3 and I4.

In Fig. 9 we have shown another slight modification of the invention in which the lower plate or cooling chamber 25 bulges a considerable distance below the bowl of the pipe. This permits the cut away portion of the bowl and the shoulder 6 to be shallower than shown in Fig. 1 and also permits the smoke passageway 26 to be made in alinement with the passageway in the stem 21. In this form of invention the partitions I0 and I5 are provided with ducts II, I2, I3 and I4 the same as in Fig. 1. The partition I 5 also has apertures I9 in its top as in Fig. 2 and at the bottom we provide an additional passage or drain opening 28 which permits any moisture that may collect in the rear compartment I8 to drain into the forward compartment II.

From the foregoing it will be readily apparent that with a pipe constructed in accordance with the present invention, none of the saliva or moisture which usually collects in a pipe can collect in the bottom of this pipe bowl but as it seeps down the stem it will drain off into the rear compartment and all moisture and condensation products from the tobacco will collect in the front compartment.

The cooling chamber preferably is made of metal of high heat conductivity, and since the chamber can be easily removed and cleaned, as well as all ducts and passageways, the smoker is always assured of a clean, cool, sweet smoke.

While we have shown several specific embodiments of our invention, it is to be understood that these are but illustrative of and not limitations on the invention, but we claim all modifications and equivalents thereof that come within the scope of our claims.

What We claim is:

1. A smoking pipe comprising a bowl with a shank having a smoke passageway communicating with the interior of the bowl, the lower portion of the bowl and shank being cut away to provide an open sided flat faced recess having an opening through its fiat face in communication with said passageway intermediate its ends, and a cooling chamber having a flat face closing said recess and having a partition extending through said opening and across said passageway to divide it into two sections, there being a duct on each side of said partition communicating at their upper ends respectively with the two sections of the smoke passageway, and at their lower ends with the cooling chamber on opposite sides of said partition, there being an aperture in the partition providing a communication between the lower ends of said ducts.

2. A smoking pipe comprising a bowl with a shank having a smoke passageway communicating with the inside of the bowl, the lower portion of the bowl and shank being cut away to provide a seat, a plate secured to said seat and having a partition extending upwardly and dividing said passageway, a pair of ducts provided on opposite sides of said partition with their upper ends communicating respectively with the two parts of said divided passageway, and a cooling chamber secured to said plate and having a partition and ducts registering with said plate partition and ducts, the lower ends of said ducts communicating with said chamber on opposite sides of said partition, said partition having an aperture providing communication between the lower ends of said ducts.

3. A smoking pipe comprising a bowl with a shank having a smoke passageway communicating with the interior of the bowl, the lower portion of the bowl and shank being cut away to provide a fiat faced open sided recess having an opening extending upward and dividing said passageway into two parts, and a cooling chamber ill secured against the flat face of said recess with its outer surface merging into the outer surface of said bowl, said cooling chamber comprising an upper plate secured to said bowl and a lower plate detachably secured to the upper plate and providing a chamber between them, and a partition dividing the chamber into two compartments and extending across said stem passageway, there being a pair of ducts in said partition, one duct providing communication between one part of said passageway and one of said compartments and the other duct providing communication between the other part of said passageway and the other compartment, there being an aperture in said partition providing communication between said compartments.

4. A smoking pipe comprising a bowl and a shank having a passageway communicating with the interior of the bowl, the lower portion of the bowl and shank being cut away to provide a fiat open sided seat, there being an opening extending from said seat across said passageway, and a hollow cooling chamber secured against the fiat face of said seat with its outer surface forming a continuation of said bowl and shank, said cooling chamber having a partition dividing it into two compartments and extending through said opening to divide said passageway into two parts, there being a duct in each side of said partition, one of said ducts connecting one part of said passageway and one of said compartments, the other duct connecting the other part of said passageway with the other compartment, there being an aperture in the partition connecting the two compartments.

5. A smoking pipe comprising a bowl with a shank having a smoke passageway communicating with the interior of the bowl, there being an opening in the bottom of the pipe extending across the smoke passageway and dividing it into front and rear sections, a metallic plate secured to the bottom of the bowl and having an extension lying in said opening, said extension having front and rear ducts communicating at their upper ends respectively with the front and rear sections of said passageway, and a cooling chamber detachably secured to said plate and having a partition dividing it into front and rear compartments, there being a duct connecting the front compartment with said front duct and a second duct connecting the rear compartment with the said rear duct, said partition having an aperture providing communication between said compartments.

6. A smoking pipe having a bowl and a shank through which a smoke passage is formed, a recess formed in the body of the pipe beneath the bowl and having an opening communicating with the smoke passage, and means for removing heat from smoke passing through the passage, comprising a partition disposed in said opening and dividing the smoke passageway into two parts, said partition having a pair of ducts communicating with the respective parts of said smoke passageway, a portion of the partition extending down into the recess and provided with smoke apertures whereby the smoke may flow from one side of the partition in the recess to the other side of the partition therein, said partition being formed of metal having high heat radiating qualities, and means closing the lower side of said recess.

'7. A smoking pipe comprising a bowl and a shank having a smoke passageway communicating with the interior of the bowl, the lower portion of the bowl and shank being cut away to form a recess having acurved shoulder at one end and-a fiat surface, a metallic cooling chamber fitting against said fiat surface and a curved end fitting said shoulder, said chamber being removable by rotation about a center concentric with the curved end and shoulder, and means for dividing said smoke passageway into front and rear sections, there being a pair of ducts connecting said sections with said cooling chamber.

8. A. smoking pipe comprising a bowl and a shank, the lower part of the bowl and shank being cut away to provide an open sided recess having a flat bottom throughout its area, one side of the recess being curved and projecting from the bottom of the recess, a hollow metal cooling chamber having an upper fiat face secured in said recess and having a large area exposed to the atmosphere, the lower surface of the cooling chamber being of convex curvature and merging into the contour of the stem and bowl, one end of the cooling chamber being curved to conform to the curved side of the recess and being of a curvature difierent from the curvature of the other end of the cooling chamber.

DAVID W. ALPHA. EMMETT A. SHEPHERD. 

